Spool and container therefor



W. F. PUNTE SPOOL AND CONTAINER THEREFOR Jupe 20, 1944.

Filed May 6, 1945 f j; 5c@

Patented June 20, 1944 2,351,782 SPOOL AND CONTAINER THEREFOR William F. Punte, Passaic, N. J., assigner to Continental Can Company, Inc., New York, N. Y., a corporation of New York Application May 6, 1943, Serial No. 485,935

(Cl. 20G- 52) Z Claims.

The invention relates to new and useful improvements in containers for spools of adhesive and like material.

An object of the invention is to provide an eilicient protective lber container or receptacle for a spool of adhesive tape or the like, which container is strong and rigid, and of simple construction and into which the associated spool may be quickly and easily inserted and ejected therefrom.

In the drawing which shows by way of illustration one embodiment of the invention,

Figure 1 is a sectional view through a containerk of brous material which is adapted to receive a spool of tape.

Figure 2 is a plan view of the same.

Figure 3 is an enlarged sectional view of a portion of the container showing the spool inserted in the container and the frictional grip between the container Wall and the spool head for retaining the spool in the container.

In general, the improved container comprises inner'and outer cylindrical sections partially telescoping one within the other and adhesively secured together. The outer section projects beyond the inner section and is curved inwardly to form a hollow bead with the end of the curl abutting the inner wall of the outer section. The inner section projects beyond the outer section and the wall is curved inwardly to form a frictional gripping line for the spool, and thence outwardly and back upon itself to form a hollow bead with the end of the curl abutting the outer surface of the inner section. These inner and outer sections are formed and beaded and then telescope one within the other until the end of the inner section contacts with the inner curled edge of the bead on the outer section, and the end of the outer section contacts with the inner end of the outwardly curled bead on the inner sections. In this position the parts are adhesively secured together. The beads are restrained from uncurling by the contact with the ends of the respective sections therewith. The spool heads are dimensioned so that they are of slightly less diameter than the inner diameter of the body wall in the region of the telescoping sections, but are of slightly greater diameter than the inwardly curved portion of the body wall which merges into the outwardly curled bead.

These sections constituting the container are preferably made of paper and the body portions may be either spirally wound or convolutely wound, after which one end of each section is curled into a hollow bead.

Referring more in detail to the drawing, the

improved container is designed particularly for housing a spool of adhesive tape which includes end heads I and 2 rigidly connected by a central core3. These parts are of the usual construction and are preferably formed of metal. The ad-l hesive tape indicated at 4 is wound on the spool between the end heads.

The container for the spool of tape includes an inner cylindrical section 5 and an outer cylindrical section 6. As noted above, these sec: tions may be formed of paper and may be either convolutely or spirally wound, and after the inner section is formed, it is then shaped so that the body wall curves inwardly, as indicated at 1, thence outwardly at 8, thence downwardly at 9 and inwardly at I0, so as to bring the end II of the curled portion into abutted contact with the outer Wall of the inner section 5. This bead is formed on the body before the sections are telescopically engaged. It is preferably formed by means of a die, and as the body wall is forced by the die into the hollow bead, it will cause the body wall of the inner section 5 to bulge inwardly, as indicated at I, so that the diameter of the inwardly bulging portion 'l is slightly less than the inner diameter of the cylindrical portion of the inner section 5. The outer section is curled inwardly at I2, thence upwardly at I3 and thence outwardly at I4, to form a hollow bead, and the inner end I5 of the curled portion is placed in abutting contact of the inner wall of the outer section 6. After these sections 5 and 6 have been formed with their hollow beads, then they are telescoped one upon the other until the end I6 of the inner section 5 abuts against the edge portion of the hollow bead on the outer section 6. Likewise the end I'I of the outer section 6 abuts against the end portion of the outwardly curled hollow bead on the inner section 5. It is well known that when beads are formed on ber body walls, there is a tendency of the bead to uncurl. When, however, these parts are telescoped together, an adhesive is secured, as indicated at I8, the ends of the inner and outer sections contacting with the respective beads will prevent the same from uncurling, and this gives greater rigidity to the container, preventing the same from readily collapsing.

The ends IV and 2 of the spool are of substantially the same diameter and are dimensioned so that there is a slight clearance between the ends and the inner body wall in the region of the telescoped sections. However, these ends are di-mensioned so that they contact with the bulged portions 'I when the spool is placed in the container, and some little force is necessary to cause the end 2 to pass the bulged portion and when the end 2 contacts with the bead formed on the outer section 6, then the end l is in contact with the bulged portion 1 or it may pass slightly beyond the same so that this bulging 1 retains the spool in the container. The end of the container having the inturned bead is open, except for the projection of the bead inwardly which forms a support for the spool, and therefore pressure may be applied to the end member 2 of the spool for forcing the spool outward and ejecting. the same from the container.

It is obvious that minor changes in the details of construction and the shaping of the parts may Abe made without departing from the spirit of the invention as set forth in the appended claims.

I claim:

1. The combination of a spool having end heads, a container therefor comprising inner and outer cylindrical sections of fiber material partially telescoping one within the other and adhesively secured together, said outer section having a portion projecting beyond the end of the inner section and curled inwardly to form a hollow bead with the end of the curl abutting the inner wall of the outer section and in contact with the end of the inneresection whereby said bead is restrained from unciirling, said inner section having a portion projecting beyondthe end of the outer section which is curved outwardly and backwardly upon itself to form a hollow bead with the end of the curl abutting the outer wall of said inner section and in Contact with the end of the outer section whereby said bead is restrained from uncurling, one of said spool heads .being of a diameter so as to frictionally engage the wall of the inner section whereby said spool is frctionally held within the container.

2. The combination of a spool having end heads, a container therefor comprising inner and outer cylindrical sections of ber material partially telescoping one within the other and adhesively secured together, said outer section having a portion projecting beyond the end of the inner section and curled inwardly to form a hollow bead with the end of the curl abutting the inner wall of the outer section and in contact with the end of the inner section whereby said bead is restrained from` uncurling, said inner section having a portion projecting beyond the end of the outer section which is curved slightly inward, thence curled outwardly and backwardly upon itself to form a hollow bead with the end of the curl abutting the outer wall of said inner section and in contact with the end of the outer section whereby said bead is restrained from uncurling, said spool heads Ibeing of a'diameter so as to freely lit within the telescoped portions of the container and frictionally t the inwardly curved portion of the inner section Wherebyrsaid spool is frictionally held within the container.'

` WILLIAM F. PUNTE. 

